当鼻出血难以用后鼻孔栓塞法控制时,许多耳鼻咽喉科学者采用曾经在60年代期间由Chandler和Serrins推广应用的经上颌窦结扎颌内动脉(IMA)法。另一些学者则主张结扎颈外动脉来代替结扎IMA,他们认为颈外动脉结扎手术迅速是在局麻下即能施行的不困难的手术。然而IMA结扎法手术失败率低,因为更接近出血的部位,减少由侧支血流引起顽固的鼻出血的可能性。IMA栓塞法经由放射科医生把栓子注入血管系的末梢部分,有很高的成功率。只是在许多医院无条件做。并且有引起严 When nasal bleeding is difficult to control with posterior nostril embolization, many otolaryngologists use the maxillary sinus ligation (IMA), a technique that has been used by Chandler and Serrins in the 1960s. Others advocate ligation of the external carotid artery in lieu of ligation of the IMA, which they believe is an intractable procedure that can be performed under local anesthesia. IMA ligation, however, has a low failure rate because it is closer to the site of bleeding and reduces the potential for stubborn nosebleeds caused by collateral blood flow. IMA embolization by radiologists to inject emboli into the distal part of the vascular system, with a high success rate. Just do it unconditionally in many hospitals. And have caused strict